Technology system, namely, analog and digital linearity error compensation systems comprised of - analog-to-digital converters, digital-to-analog converters, exponentiators, phase shifters, samplers, filters, splitters, combiners, amplifiers, attenuators, interpolators, clock circuitry, signal rate changers, analog and digital signal processing, and calibration algorithms for use in the fields of - radar, test equipment, broadband internet transmission, antenna arrays, wireless communications...